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30333412221 = 3722413072789
BaseRepresentation
bin11100010000000000…
…110010001101111101
32220021222122222221220
4130100000302031331
5444110323142341
621533542143553
72122455515100
oct342000621575
986258588856
1030333412221
1111956469622
125a66721bb9
132b25491038
14167a838737
15bc8037a66
hex71003237d

30333412221 has 48 divisors (see below), whose sum is σ = 47413840320. Its totient is φ = 17199060480.

The previous prime is 30333412189. The next prime is 30333412223. The reversal of 30333412221 is 12221433303.

It is not a de Polignac number, because 30333412221 - 25 = 30333412189 is a prime.

It is a super-2 number, since 2×303334122212 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30333412191 and 30333412200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30333412223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10874695 + ... + 10877483.

It is an arithmetic number, because the mean of its divisors is an integer number (987788340).

Almost surely, 230333412221 is an apocalyptic number.

It is an amenable number.

30333412221 is a deficient number, since it is larger than the sum of its proper divisors (17080428099).

30333412221 is a wasteful number, since it uses less digits than its factorization.

30333412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354 (or 3347 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 30333412221 its reverse (12221433303), we get a palindrome (42554845524).

The spelling of 30333412221 in words is "thirty billion, three hundred thirty-three million, four hundred twelve thousand, two hundred twenty-one".

Divisors: 1 3 7 21 49 147 241 307 723 921 1687 2149 2789 5061 6447 8367 11809 15043 19523 35427 45129 58569 73987 136661 221961 409983 517909 672149 856223 1553727 2016447 2568669 3625363 4705043 5993561 10876089 14115129 17980683 32935301 41954927 98805903 125864781 206349743 619049229 1444448201 4333344603 10111137407 30333412221